package com.wsq.springcloud.controller;

import com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand;
import com.wsq.springcloud.pojo.Dept;
import com.wsq.springcloud.service.DeptService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

//提供Restful服务
@RestController
public class DeptController {
    @Autowired
    private DeptService deptService;

    @RequestMapping("/dept/get/{id}")
    @HystrixCommand(fallbackMethod = "hystrixGet")  //如果失败 去调用Hystrix的备选方案①
    public Dept get(@PathVariable("id") Long id) {
        Dept dept = deptService.queryById(id);
        if (dept == null) {//如果当前id值为空 抛出异常
            throw new RuntimeException("id=> " + id + "不存在该用户,或者该信息无法找到");
        }
        return dept;
    }

    //备选方案①：如果出现异常 采取Hystrix的
    public Dept hystrixGet(@PathVariable("id") Long id) {
        return new Dept()
                .setDeptno(id)
                .setDname("id=> " + id + "没有找到相关信息,null by @Hystrix")
                .setDb_source("not found database in Mysql");
    }
}